ART. 17 ILLUSTRATIONS OF TYPES OF SHELLS BALL 3 



ANCISTROLEPIS BERINGIANUS Dall 



Plate 7, fig. 1 



Ancistrolepis bermgiannus Dall, Proc. U. S. Nat. Mus., vol. 56, No. 2295, p. 

 313, 1919. 

 Bering Sea, off Staritchkoff Island, in 58 fathoms. U. S. Nat. Mus. Cat. 

 No. 205401. 



ANCISTROLEPIS CALIFORNICUS Dall 



Plate 3, fig. 9 



Ancistrolepis californictis Dall, Proc. U. S. Nat. Mus., vol. 5G, No. 2295, p. 313, 

 1919. 

 Cortez Bank, off San Diego, Cal., in 9S4 fathoms. U. S. Nat. Mus. Cat. No. 



122667. 



ANCISTROLEPIS DAMON Dall 



Plate 34, fig. 5 



Chrysodomus { Ancistrolepis) daman Dall, Smithsonian Misc. Coll., vol. 50, p. 

 157, 1907. 

 South coast of Tesso, Japan, in 175 fathoms. U. S. Nat. Mus. Cat. No. 

 110474. 



ANCISTROLEPIS DECORA, new species 



Plate 35, fig. 10 



Shell of moderate size, white under an olivaceous furfuraceous 

 periostracum, with six somewhat turrited whorls exclusive of the 

 (lost) nucleus; the periostracum shows projecting hairs at the in- 

 tersections of the reticulate sculpture; the upper whorls are a good 

 deal eroded in the type specimen ; suture distinct, narrow, deep, but 

 not channelled; spiral sculpture of a prominent strong cord at the 

 shoulder, another, somewhat smaller, a little way in front of the 

 suture, and numerous small threads with equal or wider interspaces, 

 over the general surface; axial sculpture only of rather prominent 

 and widely spaced incremental lines forming a minute reticulation 

 with the spirals; aperture ample, outer lip thin, body with a thin 

 wash of enamel, pillar very short, wrinkled over a well marked 

 siphonal fasciole; canal hardly differentiated from the aperture; 

 operculum normal, height 58; diameter, 34 mm. U. S. Nat. Mus. 

 Cat. No. 110775. 



Dredged in the Japan Sea at station 4991, in 325 fathoms, mud, 

 by the United States Bureau of Fisheries steamer Albatross. 



ANCISTROLEPIS GRAMMATUS Dall 



Plate 30, fig. 8 



Chrysodomus (Ancistrolepis) grammatus Dall, Smithsonian Misc. Coll., vol. 

 50, p. 158, 1907. 

 Sugaru Strait, Japan, in 300 fathoms. U. S. Nat. Mus. Cat. No. 110472. 



